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Two moles of an ideal gas is expanded ir...

Two moles of an ideal gas is expanded irreversibly and isothermally at `37^(@)C` until its volume is doubled and `3.41 KJ` heat is absorbed from surrounding. `DeltaS_("total")("system +surrounding")` is:

A

`-0.52J//K`

B

`0.52J//K`

C

`22.52J//K`

D

0

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaS_("system")="nR ln"(V_(2))/(V_(1))`
`=2xxRxx"ln 2"`
= 11.52 J/K
`DeltaS_("surrounding")=-(3.41xx1000)/(310)`
`=-11J//K`
`DeltaS_("total")=+11.52-11`
`=+0.52J//K`
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